40024422042 has 64 divisors (see below), whose sum is σ = 89169876864. Its totient is φ = 11874954240.

The previous prime is 40024422041. The next prime is 40024422077. The reversal of 40024422042 is 24022442004.

It is a super-2 number, since 2×40024422042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40024422041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629748 + ... + 690384.

It is an arithmetic number, because the mean of its divisors is an integer number (1393279326).

Almost surely, 2^40024422042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40024422042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44584938432).

40024422042 is an abundant number, since it is smaller than the sum of its proper divisors (49145454822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40024422042 is a wasteful number, since it uses less digits than its factorization.

40024422042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60863.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40024422042 its reverse (24022442004), we get a palindrome (64046864046).

It can be divided in two parts, 400 and 24422042, that added together give a palindrome (24422442).

The spelling of 40024422042 in words is "forty billion, twenty-four million, four hundred twenty-two thousand, forty-two".